| Abbreviation | Definition |
|---|---|
| PTSR | Post-mobilization Training Support Requirement |
| PTT | Personal Training Tactics |
| PTT | Post, Telephone, and Telegraph |
| PTT | Pull The Trigger |
| PTTI | Precise Time and Time Interval |
| PTTI | Precise Time and Time Interval Pub Publication |
| PTU | Participating Test Unit |
| PTU | Portable Test Unit |
| PTUS | Physical Training (PT) Uniform |
| PTW | Poison The Well |
| PTW | Professional Training Weapons |
| PTX | Experimental Patrol Torpedo Boat |
| PU | Physical Unit |
| PUA | Private Use Area |
| PUB | Publication |
| PUC | Personnel Under Control |
| PUC | Presidential Unit Citation |
| PUG | Push-Up Game |
| PUK | PackUp Kit |
| PUL | Parent Unit Level |